#include<stdio.h>
#include<math.h>
#define M_PI 3.14159265358979323846

double angle_radians(double angle_degrees)
{
	return angle_degrees * (M_PI / 180.0);
}

double sin_value(double angle_degrees)
{
	return sin(angle_radians(angle_degrees));
}

double cos_value(double angle_degrees)
{
	return cos(angle_radians(angle_degrees));
}
